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Goodix GR551x Series Bluetooth development chips are compatible with OpenHarmony



Goodix GR551x OpenHarmony

In January 2022, the Goodix GR551x series – Bluetooth low energy development chips have officially integrated into the OpenHarmony trunk branch. from now, the developer can freely get the source from Gitee.

Last November, the Goodix GR551x series Bluetooth low energy development chips successfully passed the OpenHarmony working’s group compatibility review test and were released in November 2021.

About Goodix GR551x series:

The GR551x series is a high-performance Bluetooth 5.1 System-on-Chip (SoC) that has been widely used in mobile devices, wearables, and Internet of Things (IoT) products. This SoC family is designed to help users develop low-power Bluetooth-based products with a central role and/or a peripheral role.

Moreover, this system-on-chip is well known by the major smart device brand and ODM manufacturers. However, it has exceeded 10 million pieces.



OpenHarmony is the open-source code of the HarmonyOS operating system, which is managed by the OpenAtom foundation and built to help global developers. It has the characteristics of being oriented to all scenarios and distributed.

For source code, visit the below links:

  • vendor_goodix:
  • device_soc_goodix:
  • device_board_goodix:

Goodix GR551x OpenHarmony

Goodix GR551x Series Features:

Bluetooth 5.1 transceiver integrating Controller and Host layers

  • Diverse data rates: 1 Mbps, 2 Mbps, Long Range 500 Kbps、Long Range 125 Kbps
  • TX power: –20 dBm ~ +8 dBm
  • –103 dBm sensitivity( in Long Range 125 Kbps mode)
  • –97 dBm sensitivity (in 1 Mbps mode)
  • TX current: 3.05 mA @ 0 dBm, 1 Mbps
  • RX current: 3.9 mA @ 1 Mbps

ARM Cortex-M4F 32-bit microprocessor with floating-point support

  • Maximum frequency: 64 MHz
  • Power consumption: 25 µA/MHz


  • 256 KB RAM
  • 8 Mbit Flash

Power Management

  • On-chip DC-DC
  • On-chip I/O LDO to provide I/O voltage and supply external components
  • Supply voltage: 1.7 V ~ 4.35 V
  • I/O voltage: 1.8 V ~ 3.6 V
  • Ultra-low-power sleep mode with 0.8 µA; no memory retention and wake-on timer
  • Light sleep mode: 1 µA, supporting AON_RTC, AON GPIO, and Bluetooth LE Event wakeup


  • Complete secure computing engine: AES, HMAC, PKC, TRNG
  • Comprehensive security operation mechanism: Secure boot; Encrypted firmware runs directly; eFuse for encrypted Key storage; Application data key is different from firmware key, supporting one secret for one machine


  • 2 x QSPI interfaces
  • 2 x SPI interfaces
  • 2 x I2C interfaces
  • 2 x I2S interfaces
  • 2 x UART interfaces
  • 13-bit ADC, up to 8 channels, up to 1 Msps, supporting both single-ended and differential inputs
  • ISO7816 interface
  • 6-channel PWM
  • Built-in temperature and voltage sensors
  • 4 x hardware timers
  • 1 x AON hardware timer
  • 2 x watchdog timers
  • Calendar timer
  • Wake-up comparator
  • Up to 39 multiplexed GPIO pins


  • 6 mm * 6 mm 48L QFN
  • 5.3 mm * 5.3 mm 68L BGA

Goodix GR551x OpenHarmony



Amy is our firmware and software specialist, she keeps her eagle eyes open for new software rollouts, beta programs, and other software related activities as well as new smartphone launch.


HarmonyOS 3 Features: Stack Widgets, Large Folders, Security, Performance and more




harmonyos 3 features

HarmonyOS 3 is an evolution that symbolizes features improvements and advancement over HarmonyOS 2. Huawei brought in a number of new additions that makes this software superior to competitors.

The HarmonyOS 3 release has long been awaited by Huawei device owners and it is a whole new user experience that enhances the power of Huawei smartphones and smart devices such as the Huawei Mate 50 series.

From the user interface to performance and stability, HarmonyOS 3 covers all sides at once. The more you explore, the more you will find. Therefore, it’s time that we dive into the new additions and know more about them.

HarmonyOS 3 Features:

  • New Super Device
  • Network sharing
  • Entertainment
  • Seamless exercise
  • Mobile apps sharing
  • Network sharing
  • Widget group
  • Widget Stacking
  • New Widgets
  • More service widgets
  • Auto home screen layout
  • 3D avatar
  • Music sharing
  • AI voice
  • Performance and Gaming
  • Privacy and security
  • App control center
  • Image privacy

New Super Device:

Launched with HarmonyOS 2, Super Device allows you to connect and control several other platforms from one smartphone or device. This gives you so much power to make a one-click connect solution for all of your HarmonyOS devices.

harmonyos 3 super device

With HarmonyOS 3, Super Device has further improved and it now supports more platforms to collaborate with various other IoT devices. This helps the user to inherit amazing functionalities such as screen sharing, live streaming, music streaming, and a bunch more smart collaborative features on the go.


harmonyos 3 super devie

Network Sharing:

Powerful software has useful connectivity resolutions, such as the new Network sharing. This HarmonyOS 3 feature let you share the phone’s cellular network with a tablet to answer calls or receive SMS directly on the large-screen device.

There’s no need to check the phone, everything will be available on the tablet, while it’s connected to the smartphone using network sharing. Also, it’s power efficient as compared to mobile hotspot internet sharing.

harmonyos 3 network sharing



HarmonyOS 3 takes care of your movie and music listening experience. while watching a movie, the Huawei Vision TVs will automatically enable a 3D stereo field to immerse the viewing experience. Don’t want to disturb anyone? Don’t worry, Huawei will create the same experience in your ear once you connect your Huawei FreeBuds device.

harmonyos 3 entertainment

Seamless exercise:

Your Huawei smartwatch is ready to collaborate with a variety of IoT devices. For example, when you want to start exercising on the treadmill, drag the treadmill icon on the watch to start exercising. The data on the treadmill can also be synchronized with your smartwatch in real-time.

Want music? Yes, the earphones icon in the super device menu plays songs right away while running.


Mobile apps sharing with car screen:

Being a multi-kernel operating system HarmonyOS 3 owns a big power and allows you to share all of your mobile apps right into the in-car infotainment system. These include operations such as watching videos, playing games, video calling, recording videos, and interacting with the internet.

harmonyos 3 mobile app sharing

IoT Connectivity:

HarmonyOS 3 further optimizes connectivity with IoT devices and enables Super Device connection with thousands of smart home gadgets that are easy to navigate with a smartphone.


Just touch a refrigerator and you can control the temperature via phone or make tap it on an oven to check all of its recipes and bake it accordingly. There is a lot more than HarmonyOS 3 could do on the ground, so, let it slip into other HarmonyOS devices to feel the power of IoT connectivity.


Home screen management:

There are some massive upgrades made in the home screen management. HarmonyOS 3 features include new widget stacking and widget grouping features that help you to save home screen space and keep the screen nice and clean.


Large Folders also got a sweet upgrade with 4 different kinds of layout support to resize. Read more here.

Moreover, there are new widget types and service widgets to provide you with better interactive controls over the smartphone and tablet.


service widgets

Talking about a clean home screen, we must not forget the new smart auto home screen layout feature will automatically organize the home screen based on the category or related use cases.

3D Avatar:

HarmonyOS 3 brings you a new 3D avatar generated by an AI face-pinching algorithm. These avatars could be used as profile pic on Huawei IDs.

3d avatars

Music Sharing:


The new HarmonyOS supports simultaneous music listening, as it allows you to share music in two different earphones simultaneously.

harmonyos 3 features music sharing

AI Voice:

The company has improved AI voice and it allows you to conduct various operations with this new HarmonyOS version.

harmonyos 3 features ai voice

Performance and Efficiency:

HarmonyOS 3 has achieved improvements in app launch speed, responsiveness, and animations. On the other hand, the operating system will boast graphics and optimize battery life for long-term use cases.


Privacy and security:

Huawei wants to improve the security aspect, therefore, HarmonyOS 3 brings three different security and privacy solutions. These include Privacy Center, Security Center, and Application control center.

Each of them has its own set of features to control and manage the phone’s safety.

security and privacy

Image privacy:


There’s one tiny addition that will extend data safety – called image information desensitization. Once enabled, the feature removes sensitive information such as location, time, and phone model. There’s also an image information erasure that will only share the information that you need to share with others.

image protection

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Huawei Mate 50 series gets a new improvements and camera update



huawei mate 50 pro

Huawei is rolling out new features and system improvements update for the Mate 50 series that include optimizations. It also installs a new security patch for the Chinese models of this flagship.

According to the information, Huawei Mate 50 series users can download this new firmware via HarmonyOS Huawei Mate 50, Mate 50 Pro and Mate 50 RS Porsche Design are getting this upgrade in batches. Huawei Mate 50 series is also one of the first phones to get a slot in the HarmonyOS 3.1 wagon but we’re yet to confirm this roadmap.

Aside from these, the latest update for the Huawei Mate 50 series comes with system stability optimizations, network stability improvements, new improvements for the camera and performance, and last but not least, the January 2023 HarmonyOS security patch.

Meanwhile, there are no new updated in the global models of Mate 50 Pro but we’ll keep you posted with further information.


Below you can check the complete changelog of this rollout.


  • Optimizes system performance and stability.


  • Improves network stability in certain situations.


  • Improves Camera stability and performance in specific scenarios.


  • Integrates security patches released in January 2023 for improved system security.

Thanks to tipsters Thomas and Fabrizio for the input.

Huawei Mate 50 series improvements update

We suggest you to back up the data before upgrading to the latest software update and make sufficient space in your device to store OTA package.

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Check Xiaomi Mi 6 ported with HarmonyOS [Video]



HarmonyOS Xiaomi Mi 6

Open source HarmonyOS, OpenHarmony is making good progress in the Chinese smartphone market and its open source capability is allowing people to experiment on old non-Huawei and low specs devices, such as Xiaomi Mi 6.

An OpenHarmony developer uploaded a video on the Chinese video-sharing platform Bilibili and showed how he ported OpenHarmony onto a Mi 6 smartphone. Interestingly, the OpenHarmony boot up successfully.

The developer didn’t reveal much of the information but confirmed that the touch unit didn’t work up, while the home screen has been loaded successfully.

HarmonyOS Xiaomi Mi 6

The developer also shared a guide to port OpenHarmony old devices.


To confirm that the ported device can be unlocked and flashed and it has a third-party recovery similar to TWRP to facilitate flashing. The OpenHarmony kernel is based on the standard Linux 5.10 kernel, and 4.19 is no longer supported. During the installation, the device needs to have the kernel source code of 5.10 or above, the developer needs to confirm that the device driver source code and firmware can be obtained, and related stuff.

In addition, to open-source HarmonyOS, Xiaomi Mi 6 phones have previously supported flashing into the Windows 11 ARM system.

Launched in 2017, Mi Phone 6 is equipped with Qualcomm Snapdragon 835 chipset, a 5.15-inch 1080p resolution, 4/6GB RAM + 64/128GB storage. It has a built-in 3350mAh battery, It supports 18W fast charging.

On the other hand, the rear dual camera has a 12-megapixel telephoto lens and a 12-megapixel wide-angle lens that supports 2x optical zoom and four-axis anti-shake. On the front end, you get an 8-megapixel camera. Additionally, Mi 6 is waterproof, has multi-function NFC, supports WeChat and Alipay fingerprint payment, and uses 2×2 dual-way WiFi for network, supports dual card dual standby.


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